United States of America As Represented by the Secretary of the Air Force

Philip R Buskohl

Loon-Seng Tan

David Huabin Wang

Richard A Vaia

Gregory W Reich

Steven R Seiler

Ruel McKenzie

Kazuko Fuchi

Giorgio Bazzan

An antenna array including a foldable substrate having a plurality of fold lines arranged in a Miura-ori folding pattern, and a plurality of antenna elements interconnected by an electrical trace and disposed on the substrate, wherein the substrate containing the plurality of antenna elements is to fold according to a one-step Miura-ori folding pattern sequence, and wherein the plurality of antenna elements directs an antenna beam with a range of directivities caused by a folding of the substrate according to the one-step Miura-ori folding pattern sequence. The plurality of antenna elements may be non-overlapping prior to the folding of the substrate. The antenna beam may include a tunable radiation pattern that changes based on various stages of folding of the substrate containing the plurality of antenna elements.

Deployable origami antenna array with tunable directivity

New diamine monomers bearing sulfone terminated pendant groups, as well as methods for making the same, are provided. The diamine monomers are useful toward making polyamide, polyimide, and poly(amide-imide) polymers and copolymers, which possess hygromorphic properties and demonstrate humidity driven motility.

Hygromorphic polymers and copolymers having humidity-driven motility

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Beavercreek, OH, United States of America

Philip R Buskohl